حَدَّثَنَا إِسْحَاق ، حَدَّثَنَا سُفْيَانُ ، عَنْ عَمْرٍو ، عَنْ عَطَاءٍ ، وَطَاوُسٍ ، عَنْ ابْنِ عَبَّاسٍ ، أَنَّ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ" احْتَجَمَ وَهُوَ مُحْرِمٌ ".
قَالَ إِسْحَاق L927 : قَالَ سُفْيَانُ مَرَّةً : عَنْ عَطَاءٍ، وَمَرَّةً، عَنْ طَاوُسٍ، وَجَمَعَهُمَا مَرَّةً

Ishaq narrated to us, Sufyan narrated to us, on the authority of Amr, on the authority of Ata’, and Tawus, on the authority of Ibn Abbas, that the Messenger of God, may God bless him and grant him peace, He was cupped while in ihram.”
Ishaq said, L927: Sufyan said once: on the authority of Ata’, and on one occasion, on the authority of Tawoos, and once he combined them both.